Window latch



H. LORENZEN WINDOW LATCH Filed June 23, 1928 July 21, 1931.1

inglorerz gg Patented July 21,1931

BERRY LORENZEN, OF CRETE, ILLINOIS wn'sncw neuron a licants flied June 2's, was. Serial m zs'mor.

This invention relates to certain novel improvements in window. latches, and has for its principal object the revision of an improved construction of t is character which will be highly eficient in use and economical in manufacture.

Among the several objects of this invention is to provide a window latch which when once disposed in latched position will be wedged against one of they sash rails of a window construction when either of the sashes of the window construction is moved to opened position thereb preventing unauthorized movement of eit erof the window 5 sashes. Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed. 1

The invention will be best understood by reference to the accompan ing drawings, wherein a preferred form 0 construction is shown and in which:

Fig. 1 is a fragmentary elevational yiew of v a window construction showing mg improved window latch associated therewit Fig. 2 is a fragmentary sectional detall viewofthe same taken substantially on line- 22 of Figure 1; Fig. (3 1s a fragmentary sectional detail viewtaken substantially on the line 3-3 of Fi re 2'; and f i 4 is a sectional view taken ap groximately on line 4-4, Fig. 2,- looking in t e direction of the arrows.

In the drawings I have shown a fragmentary elevational view of a window construction, which window construction includes a jamb 10, an upper sash, 11, and alower sash 12, having associated therewith the usual sash cords 13. With this window construc-' tion I associate my improved window latch which includes-a bracket 14 provided with a bottom flange 15 secured to the top rail 16 of the sash 12 by means of scrap elements 17. This bracket further includes a -flange 18 which is disposed in parallel relation with the jamb 10 and which has its upper end portion' 19-angled and bifurcated as at '20, to

position to en age the rail 30 of the upper either of the window sashes.

'23 and the other end 24 of the spring is fixed to a cam 25 as at 26.. This cam 25 is mounted for floatingmovement on the pin 21, as shown in Fig. 3, and has its cam' edge 26 covered with a rubber or other resilient ring 27 for reasons hereinafter more fully set forth. The pin carries as at 28 operatin handle 29 which works in a recess 27 forme in the cam edge which provides a shoulder 31 against which the handle 29 is adapted to abut.

The bracket 14 is mounted upon the lower window sash 12 as best shown in Fig. 1, and to dispose the cam edge of the cam 25 into sash, the hand e 29 is moved in a direction to rotate the pin 21. The handle 29 thus engages the shoulder 31 and thereby rotates thecam against the action of the spring. In

this manner the cam is rotated about the pin 21 to dispose its cam edge against the rail 30. Upon movement of either of the upper or lower sashes of, the windowconstruction, the cam being in engagement with the rail 30 will be caused to further rotate so as to wedge itself into a firmer position against the rail .thus preventing the movement of To move the cam edge from enga ement with the rail, there is provided on t e cam a Ii 31 which may be engaged by the finger of t e hand so that the cam may be rotated in an opposite direction to dispose its cam edge from wedged position with respect to the rail.

From the foregoing description taken in connection with t e accompanying drawin it will be manifest that have provided a window lock which may be eflicient in operation and economical in manufacture,

While I have illustrated and described the referred-form of carryin my invention 95 'mtoefiect, this is capable o variations'and avail myself of such variations and modifi cations as come within the scope of the appended claims.

- Having thus described my invention, what 5 I'claim. as new and desire to protect byLetters Patent, is: 1. In a device of the character stated, a plate including an upwardly extending p0rtion, a pin mounted in said upwardly extendm ing portion, a cam eccentrically mounted for 4 floating movement on said pin, a spring disposed around said pin, said spring having one end thereof connected to said upwardly extending portion and the opposite end thereof connected to said cam, said cam havin a slot formed in one face thereof 'rovi 'ng' a shoulder, and a handle carrie by said pin including a portion adapted to travel in said slot whereb said handle may be moved to engage sai shoulder to rotate said cam against the action of said spring.

2. In a device of the character stated, a plate including an upwardly extending por-' tion, a pin mounted in said upwardly extending portion, a cam eccentrieally mounted for floating movement on said pin, a spring disf posed around said pin, sald spring having I one end thereof connected to said upwardly extending portion and the opposite end thereof connected to said cam, said-cam havinga' v slot formed in one face thereof roviding a shoulder, and a handle carried Ev said pin including a portiouada ted to travel in said slot whereb said han 1e may he moved to '35 engage said shoulder to rotate said cam against the action of said spring, said Cain having a covering of resilient material on the Y peripheq thereof. V In testimony whereof I afiix my si ature,

4o HENRY LORE N. 

